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Get last n lines of a file, similar to tail
... till it's found the right number of '\n' characters.
def tail( f, lines=20 ):
total_lines_wanted = lines
BLOCK_SIZE = 1024
f.seek(0, 2)
block_end_byte = f.tell()
lines_to_go = total_lines_wanted
block_number = -1
blocks = [] # blocks of size BLOCK_SIZE, in reverse orde...
How do I find the time difference between two datetime objects in python?
...; difference = later_time - first_time
>>> seconds_in_day = 24 * 60 * 60
datetime.timedelta(0, 8, 562000)
>>> divmod(difference.days * seconds_in_day + difference.seconds, 60)
(0, 8) # 0 minutes, 8 seconds
Subtracting the later time from the first time difference = later_tim...
Bin size in Matplotlib (Histogram)
... boundaries. They can be unequally distributed, too:
plt.hist(data, bins=[0, 10, 20, 30, 40, 50, 100])
If you just want them equally distributed, you can simply use range:
plt.hist(data, bins=range(min(data), max(data) + binwidth, binwidth))
Added to original answer
The above line works for...
How do I ZIP a file in C#, using no 3rd-party APIs?
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edited Mar 24 '11 at 13:03
adrianbanks
74.8k1919 gold badges162162 silver badges195195 bronze badges
a...
Aligning text and image on UIButton with imageEdgeInsets and titleEdgeInsets
... already does so we simply need to adjust the spacing.
CGFloat spacing = 10; // the amount of spacing to appear between image and title
tabBtn.imageEdgeInsets = UIEdgeInsetsMake(0, 0, 0, spacing);
tabBtn.titleEdgeInsets = UIEdgeInsetsMake(0, spacing, 0, 0);
I also turned this into a category for ...
Create list of single item repeated N times
...
809
You can also write:
[e] * n
You should note that if e is for example an empty list you get a...
php中0,null,empty,空,false,字符串关系详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php中0,null,empty,空,false,字符串关系详解在一个项目中遇到了一个奇怪的问题，耗费了我不少时间都没有解决，最终调试发现是判断的问题—-关于0和 ‘ ‘ (空单引号,为好...在一个项目中遇到了一个奇怪的问题，耗费了我不...
How to convert a std::string to const char* or char*?
...
1091
If you just want to pass a std::string to a function that needs const char* you can use
std:...
Count occurrences of a char in plain text file
...
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edited Oct 21 '09 at 21:45
answered Oct 21 '09 at 21:37
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Twitter's typeahead.js suggestions are not styled (have no border, transparent background, etc.)
I'm using twitter's typeahead.js 0.9.3 and it seems my suggestions are not styled at all.
9 Answers
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